Journal
PLANT GROWTH REGULATION
Volume 49, Issue 1, Pages 9-16Publisher
SPRINGER
DOI: 10.1007/s10725-006-0008-4
Keywords
ACC oxidase; amylase; Avena fatua seeds; caryopses; ethylene; GA(3); gibberellin; germination; smoke solution
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Dormant, intact Avena fatua L. (wild oat) seeds germinate poorly at 20 degrees C. Removing the hulls slightly increased germination. Treatment with smoke solutions increased the germination of both intact seeds and caryopses. Exogenous GA(3), alone or in the presence of smoke solution, increased the germination of caryopses, while ACC shows a tendency to increase germination of caryopses only when applied in combination with smoke solution. Results suggest that GA(3) and ethylene, but not smoke solutions, are involved in the regulation of alpha-amylase activity during germination. However, the participation of smoke solutions in the control of ACC oxidase activity cannot be excluded.
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